Ore-sample grinder



E. MURPHY Mafch 17; 1 925.

ORE SAMPLE GRINDER Filed July P.

atfoznu Patented Mar. 17, 1925.

narran srares EDWARD MURPHY, OF CLE ELUM, WASHINGTON.

ORE-SA1VIPLE GRINDER.

Application filed July 2,

useful Improvements in Ore-Sample Grrind-v ers, of which the followingis a specification.

This invention relates to improven'ients in means for grinding` ore'.

rllhe primar)Y object of this invention is the provision of a relativelysimple, compact and very efficient type of device, which may he used inconnection with the grinding of ore for obtaining samples.

A furtherobjcct of this invention is the provision of an ore grinder ofthe above mentioned character which embodies an ore container havingmeans therein for effectively operating directly upon ore aggregate `asto mosteffectively grind the same or pass the same in a substantiallypulverized condition to a desired location.

Other objects and advantages of this invention will be apparent duringthe course of the following' detailed description.

In the accompanying drawing, forming -i part of this specification, andwherein simi lar reference characters designate corresponding partsthroughout the several views.

Figure l is a side elevation of the improved ore sample grinder.

Figure 2 is an elevation of the improved container used in connectionwith the grinder, taken substantially at right angles to the viewillustrated in Figure l.

Figure 3 is a cross sectional view, taken through the improved grindersubstantially on the line 33 of Figure l, showing im proved details ofthe grinder.

Figure 4lis a transverse cross sectional View, taken substantially onthe line 4 4 of Figure 2, thru the container of the improved grinder.

In the drawing, wherein for the purpose of illustration is shown but thepreferred em-4 bodiment of this invent-ion, the letter A may generallydesignate the improved grinder, which may include a supporting frame B,a container F, and a collecting pan or receptacle H.

Referring to the frame B, the same preferably includes a pair of sidestandards l0 and 11, which may be of identical formation,

`weight of the same, without .ed to perform in ing adapted to 1923.Serial No. 649,115.

either cast or stamped of sheet metal, includ-- ing the upstandingportions l2 which may be substantially rectangular in formation andprovided with. slots 13 inwardly of their upper ends. At their lowerends, the body portions l2 have integral therewith the base flanges leof each of the standardslO and ll which are outturned at right anglesthere to, and provided with suitable transverse openings for receivingsecuring elements l5, such as nails, whereby the frame By may beassembled upon 'a block or other support K. As it is desired to spacet-he standards l() and ll for a predctcrmined distance, straps 17 and18, may be provided, extending transversely from the standardflO to thestandard ll, and suitablywelded to said standards, substantially asisillustrated in the drawing'.

The body portions l2 of the standards 10 and l1 may be suitablyapertured, slotted, or provided with open work to reduce the sacrificingany reinforcing feature which t-he same is adaptits support of thecontainer F. i

Referring' to the container F, the same is preferably of cylindricalformation including' thecylindrical shaped body portion 20, which isentirelyl open at both ends, and eX- teriorly screw threaded at saidends for detachably receiving imperforate caps 2l and 22.v Bearingspindles 23 and 24 are secured to the container F, intermediate the caps2l and 22, at diametrically opposed points upon said container, saidspindles 23 and 24 berest in the notches 13 of the stan-dards Il() andll to support the container F `for rotation on an axis disposedtransversely at right angles to the normal longi tudinal aXis of thecylindrical container F.

The spindles 23 and 24, just inside of the standards 10 and l1preferably have spacing washers 26 and 27 respectively provided thereon,which are adapted for contactwith the insidesurfaces of the standardsl() and l1 respectively tospace the container F intermediate saidstandards against liability of engagement therewith. The spindle 23 mayextend outwardly from its standard l0, and have thereon a drive pulley30 of any approved type, so that lthe container F maybe moved by a powerunit (not shown). The opposite spindle 24 may extend outwardly of itsstandard 11 and preferably has a crank handle 83 thereon for manualmovement of the container F upon its rotation axis.

In a side of the container F, offset with iespect to the axis ofrotation of the conlainer F, an opening 38 is provided in the bodyportion 2O of the container F adjacent the cap 22, the plane of theopening 38 being disposed substantially transversely of the plane inwhichv the container F rotates. The opening 3S is substantiallypolygonal shaped, and exteriorly upon the body 20 of the container F asubstantially,U-shaped rctaining flange 4t) is provided, for 4slidablyreceiving a detachable screen structure 4l, which is adapted forcovering` the (meningl 38 and thru which ore pnlveriied within thecontainer F will pass into the collecting pan or receptacle H.

The receptacle or collector pan H may be of any approved constructionand is adapted for positioning intermediate the standards l0 and ll,being of suiiicient length so that the container F may dip downwardlytherein during rotation of the same; the collector pan H being` entirelyopen at its top so that the ground ore may pass from the container Fthru the screen 4l into the compartment 48 of said pan H.

Referring to the means for grinding of the ore within the container Fduring movement thereof, it is preferred to provide a pair of solidsteel discs 45 and'46, intermediate which aY body of ore 47 may beplaced at any desired aggregate. The discs 45 and 46 are of lessdiameter than the diameter of the container F within which they operate,so that it is possible that some ore 47 may pass said discsto bedisposed intermediate the discs and their adjacent container caps 2l and22.

Referring to the operation of this invention, the container F is mountedupon the frame B substantially as above described, and one of the caps21 or 22 is placed upon the container. Assuming that the cap 22 isplaced upon the container, it is disposed lowermost and a disc 46 isplaced within the body 20 of the container F,`and upon this disc a bodyof ore 47 is placed, substantially as illustrated in Figure 3 of thedrawing. rihe other steel disc 45 is then placed upon the'body of ore47, and the cap 21 is placed upon the body 2O of the container F tovseal the discs and the body of ore within the container F. The containerF is then power operated for rotation thereofl or manuallyv rotated bymeans of the crank 33. Frietional poiiinding of the ore between thediscs 45 and 4G and intermediate the end caps 21and 22 of the containerF will, of course, tend to pulverize or grind the body of ore 47 untilthe same is of aconsisteney sumcient to pass the screen 4l. As thecontainer F is rotated upon its axis, as determined yby the spindles 23and 24, the ground ore'passing the screen 4l falls within thecompartment 43 of the collecting pan H.

From the foregoing description of this invention, it is apparent that anorc grinding device has been provided, which is relatively simple inconstruction, and which yet embodies means to very effectively grind theore for the purpose desired.

Various changes in the shape, size and arrangement of parts may be madeto the form of invention herein shown and described, without departingfrom thc spirit of the inventionk or scope of the claims.

I claim:

l. An ore grinder comprising a cylindrical shaped container, meansmounting said container for rotation on an axis trans\'ferse ly of itscylinder axis, and grinding discs loosely mounted in said container andof slightly less diameter than the casing and adapted to perform agrinding action upon ore disposed in the casing between the discs.

2. An ore grinder comprising a cylinder including a body portion havingdetachable end caps thereon, discs disposed within the vcylinder formovement longitudinally therein and of slightly less diameter than thecylinder, and means mounting the cylinder for movement to cause saiddiscs to reciprocate longitudinally of the cylinder.

3; An ore grinder comprising a cylindrical container adapted to bemounted for rotary movement upon a transversely disposed aXisintermediate its length, and nonperforated discs of slightly lessdiameter than the container loosely disposed within the end portions ofthe container and adapted to have movement longitudinally therein withniaterial to be ground disposed in the container between the discs. 4.An ore grinding device comprising a container, means mounting thecontainer for movement, discs loosely disposed within the container formovement longitudinally therein and adapted to be positioned in the endportions of the container with material to be ground positioned in thecontainer between the discs, said container havingT a screened openingtherein whereby ground ore may pass from the container.

5. In a device of the character described, a container adapted to haveend over end movement, and. a disc in said container of slightly lessdiameter than the container and adapted to be loosely seated uponmaterial to be pulverized in the container, and have reciprocatingmovement `longitudinally in the cylinder.

EDWARD MURPHY.

